https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854

--- Comment #143 from Richard Biener <rguenth at gcc dot gnu.org> ---
Checking with GCC 13, _num.i now behaves very nice with no obvious badness.

compiler.i behaves OK-ish, peaks are the following now

 alias stmt walking                 :  10.33 (  8%)
 parser function body               :  38.65 ( 29%)
 dominator optimization             :  17.81 ( 13%)
 tree forward propagate             :  12.41 (  9%)
 TOTAL                              : 132.12

all.i is OK as well

 parser function body               :   7.10 ( 16%)
 dominator optimization             :   5.55 ( 12%)
 TOTAL                              :  45.46

all of the numbers are at plain -O1 and a release checking built compiler.

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